--- title: "Ukezi Ebenezer Nwachukwu (@nwachukwu1) | Hashnode" description: "Hello, I'm Ukezi Ebenezer, Frontend Developer & Technical Writer | Learning Web Technologies. Read the latest articles by Ukezi Ebenezer Nwachukwu on Hashnode." url: "https://hashnode.com/@nwachukwu1" --- @nwachukwu1 # Ukezi Ebenezer Nwachukwu @nwachukwu1 · Nigeria, Calabar · Joined May 2023 Hello, I'm Ukezi Ebenezer, Frontend Developer & Technical Writer | Learning Web Technologies [Website](https://medium.com/@Ukeziebenezer) ### [Understanding Zero-Day Vulnerabilities in Control Systems: A Growing Threat to Critical Infrastructure](https://nwachukwueben.hashnode.dev/understanding-zero-day-vulnerabilities-in-control-systems-a-growing-threat-to-critical-infrastructure?utm_source=hashnode&utm_medium=feed) What is Zero-day? A zero-day is sometimes written as 0-day. A zero-day is a software vulnerability discovered by attackers before the vendor has become aware of it, because the vendors are unaware no patch exists for zero-day vulnerabilities, making ... 10 min read · [nwachukwueben.hashnode.dev](https://nwachukwueben.hashnode.dev/understanding-zero-day-vulnerabilities-in-control-systems-a-growing-threat-to-critical-infrastructure?utm_source=hashnode&utm_medium=feed) [Feb 5, 2024](https://hashnode.com/posts/understanding-zero-day-vulnerabilities-in-control-systems-a-growing-threat-to-critical-infrastructure/65c0534ec3881e3646b4c76a) ### [Exploring Layer-2 Applications: Enhancing Network Efficiency and Scalability](https://nwachukwueben.hashnode.dev/exploring-layer-2-applications-enhancing-network-efficiency-and-scalability?utm_source=hashnode&utm_medium=feed) Layer 2 refers to the asset of off-chain solutions (separate blockchains) built on top of layer 1s that reduce bottlenecks with scaling and data. Layer 2 is 12 min read · [nwachukwueben.hashnode.dev](https://nwachukwueben.hashnode.dev/exploring-layer-2-applications-enhancing-network-efficiency-and-scalability?utm_source=hashnode&utm_medium=feed) [Dec 4, 2023](https://hashnode.com/posts/exploring-layer-2-applications-enhancing-network-efficiency-and-scalability/656d4b7122c8f732bce289cf) ### [Exploring the Revolutionary Potential of Blockchain in Web Infrastructure](https://nwachukwueben.hashnode.dev/exploring-the-revolutionary-potential-of-blockchain-in-web-infrastructure?utm_source=hashnode&utm_medium=feed) Web 3.0 is a harbinger of new opportunities and exciting possibilities for the World. With the Rise of Blockchain, Artificial Intelligence, Metaverse, 5G, and Computing Technologies. Certainly, Web 3.0 has great potential to accelerate innovation for... 8 min read · [nwachukwueben.hashnode.dev](https://nwachukwueben.hashnode.dev/exploring-the-revolutionary-potential-of-blockchain-in-web-infrastructure?utm_source=hashnode&utm_medium=feed) [Oct 8, 2023](https://hashnode.com/posts/exploring-the-revolutionary-potential-of-blockchain-in-web-infrastructure/6522cc197b035c7e8803dbce) ### [Cybercrime-as-a-service Model: How It Works And How It Can Affect You?..](https://nwachukwueben.hashnode.dev/cybercrime-as-a-service-model-how-it-works-and-how-it-can-affect-you?utm_source=hashnode&utm_medium=feed) Keep in mind that the primary goal of every cybercriminal is to make as much money as possible. So, the apparition of the cybercrime-as-a-service (CaaS) model was the next inevitable step in pursuing this goal. CaaS, as an organized action, means mor... 6 min read · [nwachukwueben.hashnode.dev](https://nwachukwueben.hashnode.dev/cybercrime-as-a-service-model-how-it-works-and-how-it-can-affect-you?utm_source=hashnode&utm_medium=feed) [May 17, 2023](https://hashnode.com/posts/cybercrime-as-a-service-model-how-it-works-and-how-it-can-affect-you/64642cfc7e613b2985b1e32e) ### [Quishing: How QR code phishing is as a form of social engineering attack.](https://nwachukwueben.hashnode.dev/quishing-how-qr-code-phishing-is-as-a-form-of-social-engineering-attack?utm_source=hashnode&utm_medium=feed) Are you aware of QR code phishing or “quishing”? This form of social engineering attack is gaining popularity among cybercriminals eager to steal your data. What Is Quishing? QR code phishing or quishing is a type of phishing attack that uses QR code... 4 min read · [nwachukwueben.hashnode.dev](https://nwachukwueben.hashnode.dev/quishing-how-qr-code-phishing-is-as-a-form-of-social-engineering-attack?utm_source=hashnode&utm_medium=feed) [May 13, 2023](https://hashnode.com/posts/quishing-how-qr-code-phishing-is-as-a-form-of-social-engineering-attack/645edc54134bf5039b6bf736)